5000k's r solid tho, Used them for entire veg and replaced around half of them with 2700k's for flowering
yep 5000K is actualy ok .. atlest the best of them you can get at walmart aso. a lot bettwer then 4000K .. but now we are talking Veg and normal plants I belive .. he is growing Autos .. and have some 6500K allready .. so I would for sure go for 3x2700K for them small autos ..
Take my advice !! ... I dont use it anyway ...
Jorge Cervantes:Marijuana lethal dose = not having any, that will kill you !!
if you really need to prove it to yourself look up thw spectrums on a manufacturer website. the 5000k is a 5000k because it has sine blue but is has all the red in the right places than the 2700k.
but yea in general .. the more Lumers the better .. specialy more when they flower ..
a Veg plant indoors need atlest 3K Lumens Per sq. ft.
a flowering plant indoor needs atlest 5K Lumens per sq. ft. (10K will be much better if you want big dense nugs)
about colors or Kelvin ..
a plant need all colors (cept green) so it will boath need Blue .. red and yellow light .. to grow well ..
but in general a young plant in Veg will need more blue light (6500K)
and a flowering plant will need more red/yellow (2000-3000K) light to grow buds ..
a 5000K light will provide most yellow light I belive .. witch is`t bad .. cept if you only have 5000K bulbs ..
agin .. if it was me .. and we are talking Autos .. I would just go for some 2700K bulbs .. 23W or bigger .. as many as you can fit in ther ..
if you could get/afford 6 Y splits to fit your two light rails you could fit 12 cheap 23W bulbs .. or just get 9 of them 23W 2700K bulbs and mix em up with them tree 6500K you have ..
that would be the most logical thing to do if you ask me .. them autos need some red/yellow light ..
Ooh yea .. and if it is to much work with the pump and moveing the plants up ..
I was thinking you could use a pice of plywood to mount all your lights on .. and move that up and down .. just keep the eletrick wires and connections aso. over the plywood .. make some strings with some hooks or sumthign ..
Take my advice !! ... I dont use it anyway ...
Jorge Cervantes:Marijuana lethal dose = not having any, that will kill you !!
ohhhhhhhhhhhhh man, slipon your just getting started, i can tell from your post you using a lot of common sense, which is good.
but.... science doesnt always make sense till you break it down.. kelvin is just a color rating and has no relavance to the NM of spectrum emitted here is a 5000k bulbs light spectrum http://www.drsfostersmith.com/images...o_florasun.jpg
as you can see a large spike at 460nm and 620 630 and 660 nm which are mostly not yellow but the blend of colors would make it appear yellow.
th first thing you want to learn is using lumens as a stand point, so anything in range between, 2000-4000 lumens in veg is adequate given you use the proper spectrum. lumens is a measure ment of what the eye can see, not what plants see. i use wattage per square ft personally.
second is kelvin is the most inaccurate way to measure color.
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